Java Axon消息接收但事件处理程序未调用_Java_Spring Boot_Rabbitmq_Axon

Java Axon消息接收但事件处理程序未调用

java spring-boot rabbitmq

Java Axon消息接收但事件处理程序未调用,java,spring-boot,rabbitmq,axon,Java,Spring Boot,Rabbitmq,Axon,Axon消息接收，但事件处理程序未调用。我正在尝试用两个不同的队列在两侧实现事件源。我的第一个队列是test，第二个队列是testdemo 我有两个独立的应用程序在同一台服务器上运行用户管理钱包管理我已经实现了从用户管理到钱包管理的活动来源。它工作得很好现在我正在尝试将wallet management实现为UserManagement，这意味着我将在何时从wallet management（制作人）发布事件和（使用）用户管理应用程序。因此，接收事件，但不调用事件处理程序下面是我

Axon消息接收，但事件处理程序未调用。

我正在尝试用两个不同的队列在两侧实现事件源。我的第一个队列是test，第二个队列是testdemo

我有两个独立的应用程序在同一台服务器上运行

用户管理

钱包管理

我已经实现了从用户管理到钱包管理的活动来源。它工作得很好

现在我正在尝试将wallet management实现为UserManagement，这意味着我将在何时从wallet management（制作人）发布事件和（使用）用户管理应用程序。因此，接收事件，但不调用事件处理程序

下面是我的申请代码。请帮我弄清楚我会错过什么

我的轴突配置类

package com.peaas.ngapblueprintdemo.config;

import org.axonframework.amqp.eventhandling.DefaultAMQPMessageConverter;
import org.axonframework.amqp.eventhandling.spring.SpringAMQPMessageSource;
import org.axonframework.serialization.Serializer;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.amqp.core.AmqpAdmin;
import org.springframework.amqp.core.Binding;
import org.springframework.amqp.core.BindingBuilder;
import org.springframework.amqp.core.Exchange;
import org.springframework.amqp.core.ExchangeBuilder;
import org.springframework.amqp.core.Message;
import org.springframework.amqp.core.Queue;
import org.springframework.amqp.core.QueueBuilder;
import org.springframework.amqp.rabbit.annotation.RabbitListener;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import com.rabbitmq.client.Channel;

@Configuration
public class AxonConfiguration {

    private final static Logger logger = LoggerFactory.getLogger(AxonConfiguration.class);

    @Value("${axon.amqp.exchange}")
    private String exchange;

    @Bean
    public Exchange exchange() {
        logger.info(exchange + " AMQP Exchange Registering ");
        return ExchangeBuilder.fanoutExchange(exchange).build();
    }

    @Bean
    public Queue queue() {
        return QueueBuilder.durable(exchange).build();
    }

    @Bean
    public Binding binding() {
        return BindingBuilder.bind(queue()).to(exchange()).with("*").noargs();
    }

    @Autowired
    public void configure(AmqpAdmin amqpAdmin) {
        amqpAdmin.declareExchange(exchange());
        amqpAdmin.declareQueue(queue());
        amqpAdmin.declareBinding(binding());
    }   

    @Bean
    public SpringAMQPMessageSource testdemo(Serializer serializer) {
        System.out.println("--- On Message Call ---");
        return new SpringAMQPMessageSource(new DefaultAMQPMessageConverter(serializer)) {

            @RabbitListener(queues = "testdemo")

            @Override
            public void onMessage(Message message, Channel channel) throws Exception {
                System.out.println(message.getMessageProperties());
                System.out.println("channel == "+channel);
                super.onMessage(message, channel);
            }
        };
    }
}

package com.peaas.ngapblueprintdemo.events;

public class WalletCreatedEvent {
    private Long id;
    private String walletId;
    private Double amount;
    private Long userId;

    public WalletCreatedEvent(Long id, String walletId, Double amount, Long userId) {       
        super();
        System.out.println("--- call ---");
        this.id = id;
        this.walletId = walletId;
        this.amount = amount;
        this.userId = userId;
    }

    public Long getId() {
        return id;
    }

    public void setId(Long id) {
        this.id = id;
    }

    public Double getAmount() {
        return amount;
    }

    public void setAmount(Double amount) {
        this.amount = amount;
    }

    public Long getUserId() {
        return userId;
    }

    public void setUserId(Long userId) {
        this.userId = userId;
    }

    public String getWalletId() {
        return walletId;
    }

    public void setWalletId(String walletId) {
        this.walletId = walletId;
    }

    @Override
    public String toString() {
        return "WalletCreatedEvent [id=" + id + ", walletId=" + walletId + ", amount=" + amount + ", userId=" + userId
                + "]";
    }

}

package com.peaas.ngapblueprintdemo.eventHandlers;

import org.axonframework.eventhandling.EventHandler;
import org.springframework.stereotype.Component;

import com.peaas.ngapblueprintdemo.events.WalletCreatedEvent;

@Component
public class UserEventHandler {

    @EventHandler
    public void onCreateWalletEvent(WalletCreatedEvent event) {
        System.out.println("--- Wallet Created Successfully ---");
        System.out.println(event);
    }   
}

WalletCreatedEvent类

package com.peaas.ngapblueprintdemo.config;

import org.axonframework.amqp.eventhandling.DefaultAMQPMessageConverter;
import org.axonframework.amqp.eventhandling.spring.SpringAMQPMessageSource;
import org.axonframework.serialization.Serializer;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.amqp.core.AmqpAdmin;
import org.springframework.amqp.core.Binding;
import org.springframework.amqp.core.BindingBuilder;
import org.springframework.amqp.core.Exchange;
import org.springframework.amqp.core.ExchangeBuilder;
import org.springframework.amqp.core.Message;
import org.springframework.amqp.core.Queue;
import org.springframework.amqp.core.QueueBuilder;
import org.springframework.amqp.rabbit.annotation.RabbitListener;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import com.rabbitmq.client.Channel;

@Configuration
public class AxonConfiguration {

    private final static Logger logger = LoggerFactory.getLogger(AxonConfiguration.class);

    @Value("${axon.amqp.exchange}")
    private String exchange;

    @Bean
    public Exchange exchange() {
        logger.info(exchange + " AMQP Exchange Registering ");
        return ExchangeBuilder.fanoutExchange(exchange).build();
    }

    @Bean
    public Queue queue() {
        return QueueBuilder.durable(exchange).build();
    }

    @Bean
    public Binding binding() {
        return BindingBuilder.bind(queue()).to(exchange()).with("*").noargs();
    }

    @Autowired
    public void configure(AmqpAdmin amqpAdmin) {
        amqpAdmin.declareExchange(exchange());
        amqpAdmin.declareQueue(queue());
        amqpAdmin.declareBinding(binding());
    }   

    @Bean
    public SpringAMQPMessageSource testdemo(Serializer serializer) {
        System.out.println("--- On Message Call ---");
        return new SpringAMQPMessageSource(new DefaultAMQPMessageConverter(serializer)) {

            @RabbitListener(queues = "testdemo")

            @Override
            public void onMessage(Message message, Channel channel) throws Exception {
                System.out.println(message.getMessageProperties());
                System.out.println("channel == "+channel);
                super.onMessage(message, channel);
            }
        };
    }
}

package com.peaas.ngapblueprintdemo.events;

public class WalletCreatedEvent {
    private Long id;
    private String walletId;
    private Double amount;
    private Long userId;

    public WalletCreatedEvent(Long id, String walletId, Double amount, Long userId) {       
        super();
        System.out.println("--- call ---");
        this.id = id;
        this.walletId = walletId;
        this.amount = amount;
        this.userId = userId;
    }

    public Long getId() {
        return id;
    }

    public void setId(Long id) {
        this.id = id;
    }

    public Double getAmount() {
        return amount;
    }

    public void setAmount(Double amount) {
        this.amount = amount;
    }

    public Long getUserId() {
        return userId;
    }

    public void setUserId(Long userId) {
        this.userId = userId;
    }

    public String getWalletId() {
        return walletId;
    }

    public void setWalletId(String walletId) {
        this.walletId = walletId;
    }

    @Override
    public String toString() {
        return "WalletCreatedEvent [id=" + id + ", walletId=" + walletId + ", amount=" + amount + ", userId=" + userId
                + "]";
    }

}

package com.peaas.ngapblueprintdemo.eventHandlers;

import org.axonframework.eventhandling.EventHandler;
import org.springframework.stereotype.Component;

import com.peaas.ngapblueprintdemo.events.WalletCreatedEvent;

@Component
public class UserEventHandler {

    @EventHandler
    public void onCreateWalletEvent(WalletCreatedEvent event) {
        System.out.println("--- Wallet Created Successfully ---");
        System.out.println(event);
    }   
}

EventHandler类

package com.peaas.ngapblueprintdemo.config;

import org.axonframework.amqp.eventhandling.DefaultAMQPMessageConverter;
import org.axonframework.amqp.eventhandling.spring.SpringAMQPMessageSource;
import org.axonframework.serialization.Serializer;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.amqp.core.AmqpAdmin;
import org.springframework.amqp.core.Binding;
import org.springframework.amqp.core.BindingBuilder;
import org.springframework.amqp.core.Exchange;
import org.springframework.amqp.core.ExchangeBuilder;
import org.springframework.amqp.core.Message;
import org.springframework.amqp.core.Queue;
import org.springframework.amqp.core.QueueBuilder;
import org.springframework.amqp.rabbit.annotation.RabbitListener;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import com.rabbitmq.client.Channel;

@Configuration
public class AxonConfiguration {

    private final static Logger logger = LoggerFactory.getLogger(AxonConfiguration.class);

    @Value("${axon.amqp.exchange}")
    private String exchange;

    @Bean
    public Exchange exchange() {
        logger.info(exchange + " AMQP Exchange Registering ");
        return ExchangeBuilder.fanoutExchange(exchange).build();
    }

    @Bean
    public Queue queue() {
        return QueueBuilder.durable(exchange).build();
    }

    @Bean
    public Binding binding() {
        return BindingBuilder.bind(queue()).to(exchange()).with("*").noargs();
    }

    @Autowired
    public void configure(AmqpAdmin amqpAdmin) {
        amqpAdmin.declareExchange(exchange());
        amqpAdmin.declareQueue(queue());
        amqpAdmin.declareBinding(binding());
    }   

    @Bean
    public SpringAMQPMessageSource testdemo(Serializer serializer) {
        System.out.println("--- On Message Call ---");
        return new SpringAMQPMessageSource(new DefaultAMQPMessageConverter(serializer)) {

            @RabbitListener(queues = "testdemo")

            @Override
            public void onMessage(Message message, Channel channel) throws Exception {
                System.out.println(message.getMessageProperties());
                System.out.println("channel == "+channel);
                super.onMessage(message, channel);
            }
        };
    }
}

package com.peaas.ngapblueprintdemo.events;

public class WalletCreatedEvent {
    private Long id;
    private String walletId;
    private Double amount;
    private Long userId;

    public WalletCreatedEvent(Long id, String walletId, Double amount, Long userId) {       
        super();
        System.out.println("--- call ---");
        this.id = id;
        this.walletId = walletId;
        this.amount = amount;
        this.userId = userId;
    }

    public Long getId() {
        return id;
    }

    public void setId(Long id) {
        this.id = id;
    }

    public Double getAmount() {
        return amount;
    }

    public void setAmount(Double amount) {
        this.amount = amount;
    }

    public Long getUserId() {
        return userId;
    }

    public void setUserId(Long userId) {
        this.userId = userId;
    }

    public String getWalletId() {
        return walletId;
    }

    public void setWalletId(String walletId) {
        this.walletId = walletId;
    }

    @Override
    public String toString() {
        return "WalletCreatedEvent [id=" + id + ", walletId=" + walletId + ", amount=" + amount + ", userId=" + userId
                + "]";
    }

}

package com.peaas.ngapblueprintdemo.eventHandlers;

import org.axonframework.eventhandling.EventHandler;
import org.springframework.stereotype.Component;

import com.peaas.ngapblueprintdemo.events.WalletCreatedEvent;

@Component
public class UserEventHandler {

    @EventHandler
    public void onCreateWalletEvent(WalletCreatedEvent event) {
        System.out.println("--- Wallet Created Successfully ---");
        System.out.println(event);
    }   
}

以下是我的application.yml文件属性

axon:
    amqp:
        exchange: test
    eventhandling:
        processors:
            amqpEvents:
                source: testdemo

以下是我收到的显示事件的日志数据

MessageProperties [headers={axon-message-id=fa60968c-6905-46b5-8afe-6da853a4c51a, axon-message-aggregate-seq=0, axon-metadata-correlationId=589ef284-176f-49b8-aae0-0ad1588fa735, axon-message-aggregate-type=WalletAggregate, axon-message-revision=null, axon-message-timestamp=2018-08-06T11:09:26.345Z, axon-message-type=com.peaas.ngapblueprintdemo.events.WalletCreatedEvent, axon-metadata-traceId=589ef284-176f-49b8-aae0-0ad1588fa735, axon-message-aggregate-id=9524f7df-44fb-477f-83b8-d176583a126e}, contentLength=0, receivedDeliveryMode=PERSISTENT, redelivered=false, receivedExchange=testdemo, receivedRoutingKey=com.peaas.ngapblueprintdemo.events, deliveryTag=1, consumerTag=amq.ctag-fGm3jQcP_JIoTGf4ZMhAIg, consumerQueue=testdemo]
channel == Cached Rabbit Channel: AMQChannel(amqp://guest@127.0.0.1:5672/,1), conn: Proxy@3dcd657d Shared Rabbit Connection: SimpleConnection@19b12fd2 [delegate=amqp://guest@127.0.0.1:5672/, localPort= 52963]

您已经准备好了大部分正确的配置，但是您忘记了将

SpringAMQPMessageSource

绑定到事件处理器上，事件处理组件位于该处理器下

有关如何达到此目的的正确示例，请参见

以下是该参考指南中的一个直接片段，用于将消息源配置为事件处理器：

@Autowired
public void configure(EventHandlingConfiguration ehConfig, SpringAmqpMessageSource myMessageSource) {
ehConfig.registerSubscribingEventProcessor("myProcessor", c -> myMessageSource);
}

编辑

我想我看到了你失踪的地方。您没有将队列作为可订阅消息源正确连接到事件处理器。下面是您的

application.yml

，它将

testdemo

消息源绑定到

amqpEvents

事件处理器。因此，很抱歉我先前在这方面的假设

之所以在

UserEventHandler

中不接收事件，是因为该事件处理程序未绑定到

amqpEvents

事件处理器。

为了解决这个问题，您应该将

@ProcessingGroup（“amqpEvents”）

注释添加到

UserEventHandler

组件中。

我尝试了相同的配置，但仍然存在相同的问题。我建议您提供一个片段，说明如何订阅

订阅事件处理器，通过更新您的原始记录单，以便我能够找出您缺少的内容。嘿@Steven我有相同的配置，并将SagaConfiguration与我的SpringAMQPMessageSource绑定，但不是SagaEventHandler Eventhandler在听它。@TGW我不确定是否理解您的问题或陈述。你是说它对你有效，还是说它现在对你无效？好吧，实际上这是一个传奇，它发布了被其他服务使用的事件，然后返回成功确认事件，但理想情况下，这个事件应该在sagaeventhandler中处理，以结束传奇。但是它只被普通的事件处理程序监听，而不是@Sagaeventhandler